Patents by Inventor Glenn Mitchell
Glenn Mitchell has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12139987Abstract: Disclosed herein are downhole tubular disconnect assemblies. Those downhole tubular disconnect assemblies may each include: a parting sub having a thin wall section; a cutting segment coupled to an outer surface of the thin wall section; an ignition assembly coupled to the parting sub and the cutting segment; a sleeve disposed over the thin wall section of the parting sub and the cutting segment; and a cap coupled to the parting sub and abutted against the sleeve.Type: GrantFiled: September 17, 2020Date of Patent: November 12, 2024Inventors: Paul James Wilson, Robert Bradley Cook, Daniel Teen, Glenn Mitchel Walls
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Patent number: 12018543Abstract: Disclosed herein are downhole landing assemblies including a downhole landing assembly for an oil or gas well, downhole landing assembly may include: an upper seat cylinder capable of being coupled to an upper portion of a tubular string; a lower seat cylinder capable of being coupled to a lower portion of the tubular string, wherein the lower seat cylinder may be coupled to the upper seat cylinder; a landing seat coupled to the lower seat cylinder, the landing seat may have two inner surfaces; and a landing mandrel having two outer surfaces, wherein one outer surface of the two outer surfaces may be capable of being abutted against one inner surface of the two inner surfaces.Type: GrantFiled: October 17, 2022Date of Patent: June 25, 2024Inventors: Paul James Wilson, Robert Bradley Cook, Daniel Teen, Glenn Mitchel Walls
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Publication number: 20240093824Abstract: Methods of sealing tubulars are disclosed herein, which methods may include: providing a patch plug assembly that includes: a shaft; a wedge coupled to the shaft; a slip coupled to the shaft; a plug slidably coupled to the wedge; and a ferrule disposed between the wedge and the plug; pushing the slip against the tubular; pushing the plug against the ferrule after the slip is pushed against the tubular; pushing the ferrule against the wedge after the plug is pushed against the ferrule; and pushing a plug portion of the plug against an inner surface of the tubular.Type: ApplicationFiled: November 27, 2023Publication date: March 21, 2024Inventors: Glenn Mitchel Walls, Robert Bradley Cook, Daniel Teen, Paul James Wilson
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Patent number: 11828399Abstract: Methods of sealing tubulars are disclosed herein, which methods may include: providing a patch plug assembly that includes: a shaft; a wedge coupled to the shaft; a slip coupled to the shaft; a plug slidably coupled to the wedge; and a ferrule disposed between the wedge and the plug; pushing the slip against the tubular; pushing the plug against the ferrule after the slip is pushed against the tubular; pushing the ferrule against the wedge after the plug is pushed against the ferrule; and pushing a plug portion of the plug against an inner surface of the tubular.Type: GrantFiled: May 30, 2022Date of Patent: November 28, 2023Inventors: Glenn Mitchel Walls, Robert Bradley Cook, Daniel Teen, Paul James Wilson
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Publication number: 20230287755Abstract: Disclosed herein are downhole landing assemblies including a downhole landing assembly for an oil or gas well, downhole landing assembly may include: an upper seat cylinder capable of being coupled to an upper portion of a tubular string; a lower seat cylinder capable of being coupled to a lower portion of the tubular string, wherein the lower seat cylinder may be coupled to the upper seat cylinder; a landing seat coupled to the lower seat cylinder, the landing seat may have two inner surfaces; and a landing mandrel having two outer surfaces, wherein one outer surface of the two outer surfaces may be capable of being abutted against one inner surface of the two inner surfaces.Type: ApplicationFiled: October 17, 2022Publication date: September 14, 2023Inventors: Paul James Wilson, Robert Bradley Cook, Daniel Teen, Glenn Mitchel Walls
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Patent number: 11668050Abstract: The present invention relates to ultrasonic welding of compositions, and wet laid articles made from the compositions, containing cellulose fibers and cellulose ester fibers, as well as wet laid processes using the compositions. More specifically, the present invention relates to a wet laid nonwoven comprising cellulose and cellulose ester fibers. The wet laid nonwoven is bonded to itself and/or to other substrates, and this bonding is accomplished at least in part by ultrasonic welding.Type: GrantFiled: August 16, 2021Date of Patent: June 6, 2023Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Kenny Randolph Parker, Jeremy Kenneth Steach, Melvin Glenn Mitchell
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Patent number: 11639579Abstract: A recycled cellulose pulp composition is provided which comprises recycled cellulosic fibers and cellulose ester staple fibers. A wet-laid fibrous product is also provided which comprises recycled cellulosic fibers and cellulose ester staple fibers. A bailed article is also provided that comprises recycled cellulosic fibers and cellulose ester staple fibers. In embodiments, the recycled cellulosic fibers are present in an amount of 50 wt % or more, based on the total dry weight of fibers, and the cellulose ester staple fibers are present in an amount sufficient to increase the Canadian standard freeness (CSF) of the composition by 5% or more compared to a 100 wt % cellulosic fiber pulp composition processed under similar conditions.Type: GrantFiled: July 26, 2019Date of Patent: May 2, 2023Assignee: Eastman Chemical CompanyInventors: Kenny Randolph Parker, Charles Stuart Everett, Melvin Glenn Mitchell
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Patent number: 11530516Abstract: A composition is contained a blend zone prior to refining containing non-fibrillated virgin cellulose fibers, waste/recycle cellulose fibers or both; cellulose ester fibers, water, and one or more additives comprising fillers, internal sizing agents, biocides, process anti-foaming agents, colorants, optical modifiers, or a combination thereof. An in-line mixer can be used for adding the additives, and the consistency of the composition is lowered relative to a feed of material from a hydropulper.Type: GrantFiled: July 26, 2019Date of Patent: December 20, 2022Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
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Patent number: 11525215Abstract: A film is made from a wet laid product containing cellulose fibers and cellulose ester fibers and a plasticizer. The film can be made by heat pressing the wet laid sheet to form a film having a continuous phase of cellulose ester resin and a discontinuous phase of cellulose fibers.Type: GrantFiled: July 26, 2019Date of Patent: December 13, 2022Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker
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Patent number: 11519132Abstract: A composition obtained by combining virgin cellulose fibers, cellulose ester (CE) staple fibers having a denier per filament (DPF) of less than 3, and water, and water. The CE staple fibers can also have a short cut length of less than 6 mm and can be crimped. The compositions, when co-refined, are useful to make wet laid products such as paper, cardboard, and filters that have improved water drainage, air permeability, tensile strength, bulk, burst strength, or stiffness, or a combination of these properties.Type: GrantFiled: July 26, 2019Date of Patent: December 6, 2022Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Mounir Izallalen, Koushik Ghosh
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Patent number: 11512433Abstract: A wet laid process includes a method for making paper in which a composition containing co-refined cellulose fibers and cellulose ester fibers made into a thick stock composition in a machine chest, the thick stock is fed to a cleaning/screening zone through a device that regulates the flow rate of thick stock, the consistency of the thick stock fed to the screening/cleaning zone is reduced to form a thin stock composition; the thin stock composition is subjected to a process for cleaning the thin stock and feeding the cleaned thin stock through screens to form a cleaned and screened thin stock composition, and the cleaned and screened thin stock composition is fed to a headbox.Type: GrantFiled: July 26, 2019Date of Patent: November 29, 2022Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
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Patent number: 11492755Abstract: A recycled cellulose pulp composition is provided which comprises recycled cellulosic fibers and cellulose ester staple fibers. The recycled cellulose pulp containing co-refined re-cycled cellulose fibers and cellulose ester staple fibers can be added to a hydropulper and fed back through a refiner to make wet laid products.Type: GrantFiled: July 26, 2019Date of Patent: November 8, 2022Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Kenny Randolph Parker, Melvin Glenn Mitchell
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Patent number: 11492756Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many desired benefits. Specifically, a wet laid process comprising a process that allows the quantity of water removed from a web passed through press rolls is increased relative to a web made from a 100% cellulose comparative composition.Type: GrantFiled: July 26, 2019Date of Patent: November 8, 2022Assignee: Eastman Chemical CompanyInventors: Kenny Randolph Parker, Charles Stuart Everett, Melvin Glenn Mitchell, Koushik Ghosh, Mounir Izallalen
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Patent number: 11492757Abstract: After cellulose fibers and cellulose ester fibers are co-refined, they are fed to a blend tank continuously feeds a wet laid process. The composition in the blend tank includes co-refined cellulose fibers and cellulose ester fibers and one or more additives, and the cellulose ester fibers have a denier per filament (DPF) of less than 3, a cut length of less than 6 mm, crimped, or non-round with a DPF of less than 3.Type: GrantFiled: July 26, 2019Date of Patent: November 8, 2022Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
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Patent number: 11479919Abstract: Contoured articles formed in a mold from a fiber slurry are provided. The articles comprise a blend of cellulose fibers and cellulose ester, such as cellulose ester staple fibers. The articles are suitable in a wide array of end uses, including as cups, lids, boxes or pouches, storage containers, trays, plates, food trays, cutlery, coffee cups, coffee cup lid, packaging, bowls, clam shells, bottle caps, straws, covers, and packaging inserts.Type: GrantFiled: July 26, 2019Date of Patent: October 25, 2022Assignee: Eastman Chemical CompanyInventors: Kenny Randolph Parker, Charles Stuart Everett, Melvin Glenn Mitchell, Koushik Ghosh, Mounir Izallalen
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Patent number: 11473390Abstract: Disclosed herein are downhole landing assemblies including a downhole landing assembly for an oil or gas well, downhole landing assembly may include: an upper seat cylinder capable of being coupled to an upper portion of a tubular string; a lower seat cylinder capable of being coupled to a lower portion of the tubular string, wherein the lower seat cylinder may be coupled to the upper seat cylinder; a landing seat coupled to the lower seat cylinder, the landing seat may have two inner surfaces; and a landing mandrel having two outer surfaces, wherein one outer surface of the two outer surfaces may be capable of being abutted against one inner surface of the two inner surfaces.Type: GrantFiled: June 1, 2021Date of Patent: October 18, 2022Inventors: Paul James Wilson, Robert Bradley Cook, Daniel Teen, Glenn Mitchel Walls
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Patent number: 11466408Abstract: Absorbent wet laid products are made containing cellulose fibers and cellulose ester staple fibers that are co-refined to obtain products and articles that have improved water absorbency and tensile strength or burst strength or both. The absorbent wet laid products can now be made with a synthetic fiber in the wet laid operation since cellulose ester can be subjected to a refining operation.Type: GrantFiled: July 26, 2019Date of Patent: October 11, 2022Assignee: Eastman Chemical CompanyInventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
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Publication number: 20220290794Abstract: Methods of sealing tubulars are disclosed herein, which methods may include: providing a patch plug assembly that includes: a shaft; a wedge coupled to the shaft; a slip coupled to the shaft; a plug slidably coupled to the wedge; and a ferrule disposed between the wedge and the plug; pushing the slip against the tubular; pushing the plug against the ferrule after the slip is pushed against the tubular; pushing the ferrule against the wedge after the plug is pushed against the ferrule; and pushing a plug portion of the plug against an inner surface of the tubular.Type: ApplicationFiled: May 30, 2022Publication date: September 15, 2022Inventors: Glenn Mitchel Walls, Robert Bradley Cook, Daniel Teen, Paul James Wilson
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Patent number: 11441267Abstract: The present invention provides compositions comprising cellulose fibers and cellulose ester fibers and wet laid articles made from the compositions, as well as wet laid processes to produce these compositions. More specifically, the present invention provided compositions comprising cellulose fibers and cellulose acetate fibers and wet laid articles made from these compositions as well as wet laid processes to produce these compositions. The present invention also relates to developing a composition, process, wet laid product, or articles exhibiting any one of many desired benefits.Type: GrantFiled: July 26, 2019Date of Patent: September 13, 2022Assignee: Eastman Chemical CompanyInventors: Melvin Glenn Mitchell, Charles Stuart Everett, Kenny Randolph Parker, Koushik Ghosh, Mounir Izallalen
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Patent number: 11421387Abstract: A tissue product is provided comprising a wet-laid sheet which comprises cellulosic fibers and cellulose ester staple fibers, wherein the cellulose ester staple fibers are present in an amount sufficient to provide the wet laid-sheet with a lower density and higher thickness at a given basis weight compared to a 100% Cellulose Comparative composition, when processed under similar conditions. The cellulose ester staple fibers can also provide the wet laid-sheet with a higher softness and/or higher water absorbance, compared to a 100% Cellulose Comparative composition, when processed under similar conditions.Type: GrantFiled: July 26, 2019Date of Patent: August 23, 2022Inventors: Charles Stuart Everett, Melvin Glenn Mitchell, Kenny Randolph Parker, Mounir Izallalen, Koushik Ghosh